• Steven Rostedt's avatar
    tracing: increase size of number of possible events · 89ec0dee
    Steven Rostedt authored
    
    
    With the new event tracing registration, we must increase the number
    of events that can be registered. Currently the type field is only
    one byte, which leaves us only 256 possible events.
    
    Since we do not save the CPU number in the tracer anymore (it is determined
    by the per cpu ring buffer that is used) we have an extra byte to use.
    
    This patch increases the size of type from 1 byte (256 events) to
    2 bytes (65,536 events).
    
    It also adds a WARN_ON_ONCE if we exceed that limit.
    
    [ Impact: allow more than 255 events ]
    Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
    89ec0dee
ftrace_event.h 4.09 KB